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Interview Questions

Real questions from top companies in Python/Coding Β· easy

700+ Easy450+ Medium650+ Hard
All CategoriesBehavioralSpark/Big DataSQLPython/CodingSystem Design/ArchitectureCloud/ToolsGeneral/Othereasymediumhard
41

Explain Stack vs Unstack and their use in data transformation.

Python/Codingeasy0.1 min read
Fractal
β†’
42

Explain and implement Semaphore in Java

Python/Codingeasy0.1 min read
Walmart
β†’
43

Explain techniques for ensuring data quality in cross-functional team scenarios

Python/Codingeasy0.2 min read
Nihilent
β†’
44

Explain the difference between mutable and immutable objects in Python.

Python/Codingeasypython0.1 min read
American Express
β†’
45

Explain the differences between multiprocessing and multithreading.

Python/Codingeasypython0.2 min read
American Express
β†’
46

Explain the internal working of a HashMap

Python/Codingeasy0.2 min read
JP Morgan
β†’
47

Explain this code: [f(2) for f in [lambda x: x * i for i in range(5)]].

Python/Codingeasy0.1 min read
Gartner
β†’
48

Fibonacci Series Problem - solve using brute force and optimized approaches

Python/Codingeasy0.1 min read
ZS Associates
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49

Find pairs with sum X from a list of numbers

Python/Codingeasy0.1 min read
Paytm
β†’
50

Find the Lowest Common Ancestor (LCA) in a Binary Tree.

Python/Codingeasy0.1 min read
Flipkart
β†’
51

Find the minimum and maximum values in an array

Python/Codingeasypython0.1 min read
KPMG
β†’
52

Find the next greatest element in a linked list.

Python/Codingeasy0.1 min read
Flipkart
β†’
53

Find the three numbers from a list whose multiplication equals 180

Python/Codingeasy0.1 min read
JIO
β†’
54

Finding Complete String Pairs - identify pairs of strings that when concatenated contain all 26 English alphabets

Python/Codingeasy0.1 min read
JP Morgan
β†’
55

Flatten nested lists recursively using Python

Python/Codingeasypython0.2 min read
Tiger Analytics
β†’
56

Garbage Collector in Python - explain

Python/Codingeasypython0.1 min read
NAB
β†’
57

Given a list of integers, write a Python function to return the number of unique pairs that sum up to a target.

Python/Codingeasypython0.1 min read
Amazon
β†’
58

Given a list of intervals, merge the overlaps. How do you optimize it?

Python/Codingeasy0.2 min read
Microsoft
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59

Given a string 'AAAVGXFHHFSGFGGLK', find the non-repeating letters.

Python/Codingeasy0.1 min read
Cognizant
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60

Given an n-ary tree, write code to flatten it and store the output in a list.

Python/Codingeasy0.1 min read
Disney+ Hotstar
β†’

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